Generally, regular use over several weeks to months is needed to see significant improvements in the strength and health of your tooth enamel. Whilst non-optimised toothpastes contain ingredients which inhibit the uptake of fluoride, Pronamel instead utilises a unique optimised fluoride formulation that is engineered to lock in minerals and maximise the rehardening or acid-softened enamel.

To answer this question, I dove deep into the science behind these products, referencing top resources across the web.Driving minerals deep into the enamel surface, Sensodyne Pronamel Intensive Enamel Repair Extra Fresh Toothpaste actively repairs acid-weakened areas of the enamel. Its unique ActivRepair technology simultaneously helps rejuvenate gums with its antibacterial action, helps repair enamel and defends teeth against acid erosion. Remineralizing toothpaste works by strengthening each tooth’s outer layer and boosting the absorption of minerals deep into tooth enamel, where existing damage can be repaired. Efficacy of different remineralization agents on treating incipient enamel lesions of primary and permanent teeth. These ingredients are able to bond to weakened tooth enamel, forming patches, much like patches sewn into worn-out fabric.

It’s specially formulated to help re-harden weakened enamel, making it stronger, healthier and better protected from the effects of everyday acids. The timeframe to see noticeable results can vary depending on the initial condition of your teeth and the specific product you’re using.

Based on an in vitro test measuring enamel surface micro hardness after 3 days' combined use of toothpaste and serum. Always follow the label directions: Brush twice a day and not more than three times, minimise swallowing and spit out. The use of fluoride, dental sealants, and regular dental cleanings can help treat and prevent tooth decay. Aqua, Sorbitol, Hydrated Silica, Glycerin, Potassium Nitrate, PEG-6, Sodium Lactate, Cocamidopropyl Betaine, Aroma, Titanium Dioxide, Xanthan Gum, Sodium Saccharin, Sodium Fluoride, PVM/MA Copolymer, Sodium Hydroxide, Limonene.

Hydroxyapatite: Hydroxyapatite is the main mineral component of tooth enamel and can directly contribute to the remineralization process. Sensodyne Pronamel works by repairing tooth enamel and remineralizing each tooth deep within its surface, to protect from further damage and acid erosion.Sensodyne Pronamel Intensive Enamel Repair Whitening is proven to drive minerals deep into the enamel surface to actively repair weakened areas of the enamel caused by dietary acids, for stronger, better protected teeth. Pronamel new unique re-mineralising formula delivers more vital minerals that absorb deep into the surface structure of the weak enamel, repairing and rebuilding micro-damage in the vulnerable areas of the teeth for stronger better protected teeth.